Clarinet. Nominal pitch: B♭.

Technical description: Stained boxwood with ivory ferrules and brass keywork. Six pieces: mouthpiece, barrel, upper section, middle section for the fingers of the right hand, lower section with keys, bell. Levers for L4, tone-hole and key for R4 mounted in a fusiform swelling. All keys block mounted. Extending L4keys. Inserted wooden thumb rest. Integral bell ring. Raised blocks for four keyed tone-holes. 4iron anti-crack pins. 10keys. L0: T; speaker. L1: T; throat A♮. L2: T. L3: T; E♭₄/B♭₅. L4: C♯₄/G♯₅; E₃/B♮₄; F♯₃/C♯₅. R1: T; side trill key for throat A-B♮ and B♭-C. R2: T; B♮₃/F♯₅. R3: T; B♭₃/F♮₅. R4: T; G♯₃/E♭₅. Keymount type: turned wooden rings, blocks, swelling. Keyhead type: flat square.